package net.bwie.realtime.jtp.dws.log.function;

import net.bwie.realtime.jtp.dws.log.bean.PageViewBean;
import net.bwie.realtime.jtp.utils.DateTimeUtil;
import org.apache.flink.streaming.api.functions.windowing.WindowFunction;
import org.apache.flink.streaming.api.windowing.windows.TimeWindow;
import org.apache.flink.util.Collector;

public class PageViewReportWindowFunction implements WindowFunction<PageViewBean,String,String, TimeWindow> {
    @Override
    public void apply(String key,
                      TimeWindow window,
                      Iterable<PageViewBean> input,
                      Collector<String> out) throws Exception {

        //1.窗口时间
        String windowStart = DateTimeUtil.convertLongToString(window.getStart(), "yyyy-MM-dd HH:mm:ss");
        String windowEnd = DateTimeUtil.convertLongToString(window.getEnd(), "yyyy-MM-dd HH:mm:ss");

        //2.获取窗口中计算结果
        PageViewBean bean = input.iterator().next();
        Long pvCount = bean.getPvCount();
        Long pvDuringTime = bean.getPvDuringTime();
        Long uvCount = bean.getUvCount();
        Long sessionCount = bean.getSessionCount();

        //3.输出
        String output=windowStart+","+windowEnd+","+key
                +","+pvCount+","+pvDuringTime+","+uvCount+","+sessionCount
                +","+System.currentTimeMillis();

        out.collect(output);
    }
}
